Oil-burner



W. C. LEI'ST AND C. WAGNER.

01L BURNER.

APPLICATION FILED JULY 29. l9l 9.

1,354,314, PatentedSept. 28,1920.

3 SHEETS-SHEET l.

i 1 y y l k I I i I i a k nnir" Q I W glnmzmtow Lwh 3% w. c. 'LEIST AND 0. WAGNER.

OIL BURNER.

APPLICATION FILED JULY 29. 1919.

3 v m m a Hivwao W. C. LEIST AND C. WAGNER.

OIL BURNER. APPLICATIION FILED JULY 29,1919.

Patented Sept. 28, 1920.

3 SHEETS-SHEET 3.

gvweut w UNITED STATES PATENT OFFICE.

GIL-BURNER.

Application filec'ifiuly 29,

T 0 all whomz't may concern:

Be it known that we, lVILLIAM C. Lnrsr and CHARLns lVAeNnn, citizens of the United States, residing at lVauseon, in the county of Fulton and State of @hio, haveinvented certain new. and useful Improvements in Oil- Burners, of. which the following is a specification.-

This invention. relates to certain new and useful.improvementsin a liquid fuel burner and more especially to that type embodying an overlying retor.t,theprincipal object residing in a compact, durable and simple structure which may readily be ignited and operated efficiently.

. The invention: furtheraimsto provide an improved retortconstruction and feed thereto .wherebythe fuel may. be converted into gas very rapidly and without the danger of; explosion.

Furtherthe invention, resides in the features-of construction and the arrangements and combinations of parts hereafter described, and-claimed, reference being had to the accompanying drawing wherein.

Figure 1 is -a side elevation of the im proved burner;

Fig. 2 is a top plan view thereof;

Fig. 3 is a vertical longitudinal section through theburner on line 33-.of Fig.2

Fig. 4 is a horizontal section. thereof on line 4+4 of Fig. 3;

Fig, 5' is a transverseivertical. section on line 5+5 of- Fig. 31;'and

Fig. 6 isasection view of the-burner onv a horizontal planebeneath that of Fig. l, as indicated at line-6-6.

Referringmore in detail to the disclosure, thenumeral 1 designates the burner base for the burner body which is composed of two sections 2 and 3, the lower section 2 having a depending, centrally located standard or post 4 secured to the base by screw 5 and serving to. space the burner above the base. The upper section 3 is in the form of a hollow or channeled ring having its opened,

bottom. side seating on, the lower section where it; is positionedlby apair of concentric ribs 6 on said lower, section. Ahorizontal conduit or mixing tube extends diametrically through the lowerburner section and branches. ofi'iat itsinner end, discharging upwardly between theribs 6' intothe channel or annular chamber 8 of the upper burner section. This latter. section isformed in its 3191 f e Wit -c ncentri mi-c rcular j t Specification of Letters Patent.

Patented Sept. 8, 1920.

1919. Serial no. 314,159.

openings or slots 9, the same terminating in alined radial grooves 11 formed in said upper section.

The overlyin retort 10 is disposed above the burner and the grooves 11, extending down into the latter, and comprises parallel passage 1 and 13 containing bundles of small fine wires 14 whereby the liquid fuel passing thereover is more readily vaporized.

hese passages or conduits communicate at their inner ends through a chamber 15 filled with asbestos 16 which is accessible upon removal of plug 17. The opposite end of the return conduit 13 communicates through vertical conduit 18 with a horizontal chamber 19' opposing or alined with the mixing tube 7. These conduits 12, 13, 18 and19 are preferably formed in an integral, unitary casting, and in one end of chamber 19 is secured a nozzle 20 for directing the vaporized fuel into the mixing tube or chamber where it commingles with air drawn in through the space between the nozzle and mixing chamber. The nozzle is formed with a valve seat on which engages the needle valve 21 which has its stem 22 threaded through the stufling box 23 in the opposite end of chamber 19.

The conduit casting is formed with a threaded nipple 24 at its inlet side and in this nipple is secured a pipe 25 filled with gravel 26 or the like, which is retained therein by means of two end caps 27. The opposite end of the pipe or chamber 25 is connected to the fuel line 28.

Secured to the base of the burner so as to underlie the chamber 19 and mixing chamher 7 is a Y-shaped ignition or priming tray 29, the branches of the tray or pan straddling the post i to effect. rapid heating; of the burner for starting.

In operation, the fuel line is opened and the liquid. fuel trickles through the gravel and ire fillings, and the needle valve 21 is unseated temporarily to permit the fuel oil dropping from the nozzle into the underlying pan. Valve 21 is closed after suflicient oil hasdropped into the pan and the fuel is thenignited to heat the chamber 19 and adjacent portions of the burner. sufficient to start vaporization when the needle valve is again opened vto discharge the pent up gas into the mixing chamber 7 from which the combustible mixture is discharged through the arcuate jet slots 9 and; ignited. From thi point on the generation of. gas by vapor izing the fuel occurs in the overlying retort when the full jet extends entirely therebeneath. Furthermore, the asbestos, because of its heat insulating qualities, facilitates the flow of the liquid fuel from the upper conduit to the lower or return conduit without vaporization of the fuel until it reaches the return conduit. However, should excessive gas pressure accumulate in the retort the gravel chamber will prevent its escape to the fuel line.

The construction of the burner retort in a single casting simplifies the manufacture and reduces the number of parts. A pair of oppositely extending ears 80 adjacent the nip ple connection 24 provides simple and practical means for mounting the retort, said ears being secured to a bracket arm 31 extending from the upper burner section. Thus, to detach the retort from the burner proper requires only the removal of the screws 32 employed to secure ears 30 to bracket arm'3l.

What is claimed is: I

1. A liquid fuel burner comprising a base, a burner body supported thereon by' a cen trally located post and provided with arcuate jet slots separated by alined radial grooves, a mixing chamber underlying the body and opening at one end, a one-piece retort overlying the burner body in the alined grooves thereof and having a depending conduit part extending adjacent the opened end of the mixing chamber, a valve-controlled nozzle on the depending conduit part for directing the gas into the mixing chamber, and a priming pan secured to the base and about the body-supporting post. 2. A liquid fuel burner comprising a base, a burner body supported thereon by a centrally. located post and provided with arcuate jet slots separated by alined radial grooves, a mixing chamber underlying the body and opening at one end, a one-piece retort overlying the burner body in the alined grooves thereof and having a depending conduit part extending adjacent the opened end of the mixing chamber, a valve-controlled nozzle on the depending conduit part for directing the gas into the mixing chamber, and a gravel-filled chainber connected to the inlet side of the retort. 3. A burner comprising a lower section having a substantially diametrical tubular mixing chamber opening laterally at one side of the section and upwardly through the top face of the body section at the opposite side, and a ring-like upper section of inverted U-section seating on the lower sec- 5. A burner comprising a ring-like body having arcuate'jet slots in one face and a tubular mixing chamber extending diametrically across its opposite face, said chamber at one end entering the body and having its opposite end opening beneath the body adjacent its periphery, the latter beingprovided above the opened end with a bracket,

and a gas supply nozzle supported on the bracket and discharging into the mixing chamber.

6. A burner comprising a ring-like body having arcuate jet slots in one face and a tubular mixing chamber extending diametrically across its opposite face, said chamber at one end entering the body and having its opposite end opening beneath the body adjacent its periphery, the latter being provided above the opened end with a bracket, and an overlying retort secured to the bracket and provided with a nozzle depending to discharge into the mixing chamber.

7. A burner comprising a ring-like body having arcuate jet slots in one face and a tubular mixing chamber extending diametrically across its opposite face, said chamber at one end entering the body and having its opposite end opening beneaththe body adj acent its periphery, the latter being provided above the opened end with a bracket, a unitary retort structure extending across the first face of the body and secured to the bracket, said retort structure having two bores therethrough opening into a communicating chamber, a closure member for the chamber, a filler of fibrous material for the chamber compressed therein by the closure member, and a nozzle connected to theregort and discharging into the mixing cham- 8. A burner comprising a ring-like body having arcuate jet slots in one face and a tubular mixing chamber extending diametrically across its opposite face, said chamber at one end entering the body and having its opposite end; opening beneath the body adjacent its periphery, the latter being provided above the opened end with a bracket, spaced bracket parts extending laterally from the body, an overlying retort having oppositely extending ears engaging the bracket parts, a nozzle depending'between the latter for discharging into the mixing chamber. 7

9. A burner comprising a ring-like body having arcuate jet slots in one face and a tubular mixing chamber extending diametrically across its opposite face, said chamber at one end enteringthe body and having its opposite end opening beneath the body adjacent its periphery, the latter being provided above the opened end with a bracket, a unitary retort structure overlying the body and having a nozzle depending to one side thereof for discharge into the mixing chamber, a valve in the nozzle having its operating stem extending outwardly of the body, and a filter pipe connected to the retort and extending lengthwise of and above the valve stem.

10. A burner body comprising an annular base, an annular jet member seated thereon formed with arcuate jet openings interrupted by alined radial grooves, and means in the grooves for securing the jet member to the base.

In testimony whereof we afiix our signatures.

WILLIAM C. LEIST. CHARLES WAGNER. 

